How To Replace Garage Doors With French Doors

How to Replace Garage Doors with French Doors

There are times when you need to add an extra room into your house to increase the space of your home. Using the garage is a great option for this although you should replace your garage door into something homier, such as a French Door.

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Here, we’re going to give you a quick step-by-step guide on replacing your garage door into a French Door.

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Steps to Changing the Garage Doors with French Doors

Changing your garage door into a french door will be a big project and you might also need a few people to help you with all the moving. You’re also going to need a few tools and items to build the door frame and properly fit the French Doors. The materials you’re going to need are:

  • Power Drill
  • Miter Saw
  • 10d Finish Nail
  • Foam Sheets
  • Adhesive
  • Level
  • 4x4 Header
  • Studs
  • French Door

Step 1

Take off the motor which opens the garage door. Removing this mechanism usually depends on how it was installed. You’ll also take into account its chain and tracks which pulls and lowers the garage door.

Step 2

Disassemble the garage door by carefully unscrewing each panel with a screwdriver. The best way to do this is to start from the top and work your way down to the bottom panels.

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Step 3

Measure the distance between the new French Doors with the garage opening to get the measurements for the door frame. A good way to do this is to measure the length of the French Door and garage opening then subtract the two lengths and divide it in half to get the distance. 

Use this distance for both sides of the door frame and mark the ground with chalk on where you’re going to place your French Doors.

Step 4

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Create the door frame by using the measurements from the previous steps to create your still plate, bottom plate, and studs. Anchor the wall of the still plate into the floor using a power drill to screw it in place.

Step 5

Use a miter saw to cut a few inches off the top plate, allowing space for the studs to be placed on both sides of the door. The top plate will later be installed into the ceiling joists, allowing support for the French Door.

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Step 6

Install the studs into their corresponding areas which are in between the still plate and the top plate. Assure that the studs are placed properly and are leveled. You can use a spirit level to make it easier for you to properly adjust the studs to make it properly straight.

Both sides of the door frame must be at the same height to avoid any problems during the installation of the French Doors.

Step 7

You can use a nail or a 3-inch screw to hold the studs in place. You can use shims if necessary and make sure to use an X pattern when you’re placing the screws or nails into the studs. At often, pre-hung French Doors also come with long screws in the assembly so you can use that when placing your door stud.

Step 8

Install the pre-measured and cut 4x4 header into the top part of the door frame. This will keep the door in place upon installation. You can temporarily attach the door into the door frame to know where you should exactly place the header.

Use finish nails or 3-inch screws to properly lock the header into place.

Step 9

Attach rigid foam sheets underneath or beside the header and sill plates to insulate the wall. This lowers the chances of moisture from and temperature from the outside to enter into the garage. You can use a nail to properly attach the foam sheets firmly into place around the wall door frame.

Step 10

Use a knife to cut the foam sheets to make it fit into the wall. Make sure that they are properly fitted for the wall foam sheets to properly insulate the interior of the garage.

Step 11

Apply an Adhesive sealant into the bottom part of where you’re going to install the French Doors. This ensures that the doors aren’t going to move anywhere and also to prevent any hot or cold air to enter underneath the door to increase insulation.

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Step 12

Install the French Door into the center of the door frame. For more information about this step, it’s best to check the installation manual if your French Door is pre-built. 

Step 13

The pre-built French Doors often come with hinge screws and hinges with it. If there are already markings or holes in the door then properly install the screws and hinges into their corresponding place.

Make sure that the hinges are properly installed to prevent any problems when opening the door.

Step 14

Check if the doors are properly installed by opening and closing them. See if the doors are rubbing into the frame or if the doors aren’t properly locked in place which makes them move. 

Repeat the previous steps if there are any adjustments needed to properly put the doors in place.

Step 15

Attach studs in between the header and the top plate to lock the French door in place. Use a nail or a screw to attach the studs in place.

Step 16

Use a trimmed baseboard to hide the area where the garage opening and the new garage wall meets. This makes the new French Doors look cleaner and hide the fact that it was newly installed.

Step 17

Use wood or cement siding for additional camouflage on the newly installed door frame. Paint the new door frame with the same color as the wall to make it look more believable and also better looking.


By following these steps properly and paying carefully placing each part upon installation, you’ll be able to have the perfect French Door in no time. You might even forget that you’ve replaced your garage door as your french door is going to look like it’s meant to be there.